I’ve stayed at Sitara for 3 weeks while I was in Bangkok. The location is great, not central, but the area is a nice one, mostly local people, a lot of food places and bars with live music nearby. You can get to the metro station in about 10 minutes walk, or you can use the free tuktuk provided. In about 40 minutes you will get to the Great Palace and other important turistic places, there is also a 7-11 about 2 minutes away which is open non-stop.
The room is spacious, and very clean, they provide cleaning services everyday and they do it meticulously, they change the towel, clean the dishes, make the bed and clean the bathroom the result being a spotless room and building.
For those who want to work from there, the internet connection is a good one but not great (around 30 mbs) but I’ve had no problems during long video calls.
I recommend this place for everyone visiting Bangkok and wanting to find a nice cheap place to stay, run by honest and friendly people.